A processing technology for the inlay block of the middle cylinder of a rotary compressor pump body

Abstract

The present invention relates to the field of compressor pump bodies, specifically a processing technology for the cylinder inlay blocks in a rotary compressor pump body, including the following steps: Select appropriate profiles: After cold drawing the profiles through a cold drawing die, perform slitting to form the first semi-finished product; Perform primary processing on both end faces of the first semi-finished product to form the second semi-finished product; After clamping multiple second semi-finished products, perform machining for opening suction holes and sliding vane grooves to form the third semi-finished product; Perform secondary processing on the sliding vane grooves of the third semi-finished product to form the fourth semi-finished product; Perform secondary processing on both end faces of the fourth semi-finished product to form the fifth semi-finished product; Perform machining on the inner and outer arc surfaces of the fifth semi-finished product to form the finished inlay blocks; The above processes achieve the processing and forming from the profiles to the finished inlay blocks.

Description

Technical Field

[0001] The present invention relates to the field of compressor pump bodies, and particularly to a processing technology for an inlay block of a middle cylinder block of a rotary compressor pump body. Background Art

[0002] Rotary refrigeration compressors are widely used in the interior of air conditioners for household and similar uses due to their high refrigeration efficiency, compact structure, and small volume.

[0003] In the Chinese patent application with the application number CN202510121534.8 of the present applicant, it discloses a cylinder block of a rotary compressor pump body and a manufacturing method. The middle cylinder block of the rotary compressor pump body is composed of an inlay (inlay block) and a lightweight material. The cylinder block formed in this way realizes the lightweight design of the cylinder block while meeting the wear resistance.

[0004] In the above patent application, how the inlay block is formed is not disclosed.

[0005] In summary, how to realize the processing and forming of the inlay block has become an urgent problem to be solved by researchers in this field. Summary of the Invention

[0006] The technical problem to be solved by the present invention is: how to realize the processing and forming of the inlay block;

[0007] To solve the above technical problem, the present invention adopts the following technical solutions:

[0008] The present invention discloses a processing technology for an inlay block of a middle cylinder block of a rotary compressor pump body, including the following steps: S1: Select a profile suitable for cold drawing; S2: After cold drawing the profile through a cold drawing die, perform segmented cutting to form a first semi-finished product; S3: Perform primary processing on both end faces of the first semi-finished product to form a second semi-finished product; S4: After clamping multiple second semi-finished products, perform processing to open suction holes and sliding vane grooves to form a third semi-finished product; S5: Perform secondary processing on the sliding vane grooves to form a fourth semi-finished product; S6: Perform secondary processing on both end faces of the fourth semi-finished product to form a fifth semi-finished product; S7: Perform processing on the inner arc surface and outer arc surface of the fifth semi-finished product to form a finished inlay block.

[0009] Further, the profile in S1 is steel.

[0010] Further, the thickness of the first semi-finished product is greater than the thickness of the second semi-finished product, the thickness of the second semi-finished product is greater than the thickness of the fifth semi-finished product, and the thickness of the fifth semi-finished product is equal to the thickness of the finished inlay block; and the thicknesses of the third semi-finished product and the fourth semi-finished product are the same as the thickness of the second semi-finished product.

[0011] Further, in S3, place the first semi-finished product on a milling machine, mill the end face of the first semi-finished product, and then place the first semi-finished product after milling on a double-end surface grinding machine or a surface grinding machine to grind the end face of the first semi-finished product, thereby forming a second semi-finished product; or place the first semi-finished product on a double-end surface grinding machine or a surface grinding machine to grind the end face of the first semi-finished product, thereby forming a second semi-finished product.

[0012] Further, S4 includes: S41 for processing the suction holes and S42 for processing the vane slots, and the processing sequences of S41 and S42 can be interchanged; wherein, S41: Clamp multiple second semi-finished products with the same end face in a coplanar state, and horizontally open the suction holes in sequence for multiple second semi-finished products, and the axis of the suction hole is parallel to the end face of the second semi-finished product; S42: Stack multiple second semi-finished products in the thickness direction and then clamp them, and longitudinally open the vane slots along the second semi-finished products.

[0013] Further, S41 also includes: After the suction holes are opened, clamp multiple second semi-finished products with the same end face in a coplanar state again, and horizontally open the second semi-finished products in sequence to form the spring holes, and the axis of the spring hole is consistent with the radial direction of the cylinder block.

[0014] Further, in S42, when multiple second semi-finished products are stacked and clamped in the thickness direction, a connecting hole is longitudinally drilled through along the second semi-finished products.

[0015] Further, in S5, the secondary processing is to first rough mill the vane slots, and then finish mill and / or finish grind the vane slots to form a fourth semi-finished product.

[0016] Further, in S6, the secondary processing is to place the fourth semi-finished product on a double-end surface grinding machine or a surface grinding machine to finish grind the two end faces of the fourth semi-finished product, and the thickness of the fifth semi-finished product after grinding is the same as the thickness of the inlay block finished product.

[0017] Further, in S7, place the fifth semi-finished product on a grinding machine to grind the inner arc surface and the outer arc surface of the fifth semi-finished product; after grinding, the inner arc surface and the outer arc surface are the same size as the inner arc surface and the outer arc surface of the inlay block finished product.

[0018] Further, in S3, after the second semi-finished product is formed, it also includes opening longitudinal textures on both side planes of the second semi-finished product.

[0019] Advantages of the present invention: The present invention relates to a processing technology for the inlaid block of the middle cylinder of a rotor compressor pump body. After cold drawing the material, a first semi-finished product is formed. The end face of the first semi-finished product is processed to form a second semi-finished product. Multiple second semi-finished products are horizontally clamped or stacked and assembled to form a third semi-finished product with suction holes and sliding vane grooves. The sliding vane grooves of the third semi-finished product are further processed to form a fourth semi-finished product. The end face of the fourth semi-finished product is processed to form a fifth semi-finished product. The outer arc surface and inner arc surface of the fifth semi-finished product are processed to form the finished inlaid block. Brief Description of the Drawings

[0020] The present invention will be further described below with reference to the drawings and embodiments.

[0021] Figure 1 is a cross-sectional view of the finished inlaid block in Embodiment 1;

[0022] Figure 2 is a right view of the finished inlaid block in Embodiment 1;

[0023] Figure 3 is a schematic diagram of the profile in Embodiment 1;

[0024] Figure 4 is a cross-sectional view of the first semi-finished product in Embodiment 1;

[0025] Figure 5 is a right view of the first semi-finished product in Embodiment 1;

[0026] Figure 6 is a right view of the second semi-finished product in Embodiment 1;

[0027] Figure 7 is a cross-sectional view of the second semi-finished product after processing the sliding vane grooves in Embodiment 1;

[0028] Figure 8 is a cross-sectional view of the third semi-finished product after processing the sliding vane grooves and suction holes of the second semi-finished product in Embodiment 1;

[0029] Figure 9 is a cross-sectional view of the fourth semi-finished product in Embodiment 1;

[0030] Figure 10 is a right view of the fifth semi-finished product in Embodiment 1;

[0031] Figure 11 is a cross-sectional view of the fifth semi-finished product in Embodiment 1;

[0032] Figure 12 is a cross-sectional view of the finished inlaid block in Embodiment 2;

[0033] Figure 13 is a right view of the finished inlaid block in Embodiment 2;

[0034] Figure 14 It is a schematic diagram of the profile in Embodiment 2;

[0035] Figure 15 It is a cross-sectional view of the first semi-finished product in Embodiment 2;

[0036] Figure 16 It is a right view of the first semi-finished product in Embodiment 2;

[0037] Figure 17 It is a right view of the second semi-finished product in Embodiment 2;

[0038] Figure 18 It is a cross-sectional view of the second semi-finished product with the air suction holes processed in Embodiment 2;

[0039] Figure 19 It is a cross-sectional view of the second semi-finished product with the air suction holes and spring holes processed in Embodiment 2;

[0040] Figure 20 It is a cross-sectional view of the second semi-finished product with the air suction holes, spring holes and slide vane grooves formed into the third semi-finished product in Embodiment 2;

[0041] Figure 21 It is a cross-sectional view of the fourth semi-finished product in Embodiment 2;

[0042] Figure 22 It is a right view of the fifth semi-finished product in Embodiment 2;

[0043] Figure 23 It is a cross-sectional view of the fifth semi-finished product in Embodiment 2;

[0044] Figure 24 It is a cross-sectional view of the finished inlay block in Embodiment 3;

[0045] Figure 25 It is a right view of the finished inlay block in Embodiment 3;

[0046] Figure 26 It is a schematic diagram of the profile in Embodiment 3;

[0047] Figure 27 It is a cross-sectional view of the first semi-finished product in Embodiment 3;

[0048] Figure 28 It is a right view of the first semi-finished product in Embodiment 3;

[0049] Figure 29 It is a right view of the second semi-finished product in Embodiment 3;

[0050] Figure 30 It is a cross-sectional view of the second semi-finished product with the air suction holes processed in Embodiment 3;

[0051] Figure 31It is a cross-sectional view of the second semi-finished product after processing the air intake holes and spring holes in Example 3;

[0052] Figure 32 It is a cross-sectional view of the second semi-finished product after processing the air intake holes, spring holes, and sliding vane grooves to form the third semi-finished product in Example 3;

[0053] Figure 33 It is a cross-sectional view of the fourth semi-finished product in Example 3;

[0054] Figure 34 It is a right view of the fifth semi-finished product in Example 3;

[0055] Figure 35 It is a cross-sectional view of the fifth semi-finished product in Example 3;

[0056] Figure 36 It is a cross-sectional view of the inlay block finished product in Example 4;

[0057] Figure 37 It is a side view of the inlay block finished product in Example 4;

[0058] Figure 38 It is a schematic diagram of the profile in Example 4;

[0059] Figure 39 It is a cross-sectional view of the first semi-finished product in Example 4;

[0060] Figure 40 It is a right view of the first semi-finished product in Example 4;

[0061] Figure 41 It is a right view of the second semi-finished product in Example 4;

[0062] Figure 42 It is a cross-sectional view of the second semi-finished product after processing the air intake holes in Example 4;

[0063] Figure 43 It is a cross-sectional view of the second semi-finished product after processing the air intake holes and spring holes in Example 4;

[0064] Figure 44 It is a cross-sectional view of the second semi-finished product after processing the air intake holes, spring holes, sliding vane grooves, and connecting holes to form the third semi-finished product in Example 4;

[0065] Figure 45 It is a cross-sectional view of the fourth semi-finished product in Example 4;

[0066] Figure 46 It is a right view of the fifth semi-finished product in Example 5;

[0067] Figure 47 It is a cross-sectional view of the fifth semi-finished product in Example 5;

[0068] In the figure: 01 - finished inlay block, 011 - flat surface, 012 - transverse texture, 013 - longitudinal texture, 014 - air suction hole, 015 - slide groove, 016 - outer arc surface, 017 - inner arc surface, 018 - end face, 020 - spring hole, 021 - avoidance part, 022 - connection hole, 1 - first semi-finished product, 2 - second semi-finished product, 3 - third semi-finished product, 4 - fourth semi-finished product, 5 - fifth semi-finished product, 6 - profile. Detailed implementation mode

[0069] Now, the present invention will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only showing the basic structure of the present invention in a schematic way, so they only show the components related to the present invention. Embodiment 1

[0070] See Figure 1 、 2 For the structure schematic diagram of the finished inlay block in this embodiment, the thickness of the finished inlay block 01 in the figure is H, the two flat surfaces on both sides of the finished inlay block 01 are flat surfaces 011, there is a certain included angle between the two flat surfaces 011, transverse texture 012 and longitudinal texture 013 are arranged at the flat surface 011, and the transverse texture 012 and longitudinal texture 013 are used to increase the bonding force with the light material. An air suction hole 014 and a slide groove 015 are arranged in the finished inlay block 01. Both the air suction hole 014 and the slide groove 015 are arranged along the radial direction of the cylinder block. The slide groove 015 is a structure that penetrates through the two end faces 018 in the finished inlay block 01. A slide can be slidably arranged in the slide groove 015, and this slide is coupled with the piston (not shown in the figure) in the cylinder block; the radius of the outer arc surface 016 of the finished inlay block 01 is R, and the radius of the inner arc surface 017 is r; as Figure 2 shown, from the side view of the finished inlay block 01, the two sides of the finished inlay block 01 are end faces 018.

[0071] In order to form the finished inlay block shown in Embodiment 1, the following steps are adopted in this solution:

[0072] S1: Select a profile 6 suitable for cold drawing processing. The profile 6 is a cylinder or a square structure, and the profile 6 can be made of steel, such as 45 steel;

[0073] S2: As Figure 3 、 4 shown, the profile in S1 is cold drawn by a cold drawing die and then segmented and cut to form a first semi-finished product 1; the outer contour of the first semi-finished product 1 is roughly the same as the outer contour of the finished inlay block 01. Transverse texture 012 formed along the cold drawing direction is arranged on the two flat surfaces 011 of the first semi-finished product 1. The thickness of the first semi-finished product 1 is H1, the radius of the outer arc surface of the first semi-finished product 1 is R1, and the radius of the inner arc surface is r1; wherein, H1 > H, R1 > R, r1 < r;

[0074] S3: As Figure 5 , 6 shown, if the parallelism of the two end faces 018 of the first semi-finished product 1 after slitting does not meet the requirements, for example, it is greater than 4 microns, then first place the first semi-finished product 1 on a milling machine for milling the end face 018 and then place it on a grinding machine for grinding the end face 018 to form the second semi-finished product 2; if the parallelism of the two end faces of the first semi-finished product 1 after slitting is greater than 2 microns and less than 4 microns, then place the first semi-finished product 1 on a grinding machine for grinding the end face 018 to form the second semi-finished product 2; the thickness of the second semi-finished product 2 is H2; where H1 > H2 > H.

[0075] Through the above steps, the parallelism of the two end faces 018 of the first semi-finished product 1 can be guaranteed, and in this way, taking the end face 018 as the reference, it is convenient for subsequent processing of the suction holes 014 and the vane slots 015.

[0076] As Figure 6 shown, S3 also includes that after forming the second semi-finished product 2, taking the end face 018 of the second semi-finished product 2 as the reference, longitudinal textures 013 are opened on the two side planes 011 of the second semi-finished product 2.

[0077] S4: As Figure 7 shown, first stack and clamp multiple second semi-finished products 2 in the thickness direction for longitudinal grooving, and the formed third semi-finished product 3 has vane slots 015; as Figure 8 shown, subsequently, re-clamp the third semi-finished product 3 horizontally for transverse drilling, and the formed third semi-finished product 3 has suction holes 014.

[0078] In the above steps, first stack multiple second semi-finished products 2, and then complete the longitudinal opening of the vane slots 015. The axis of the vane slots 015 is consistent with the radial direction of the cylinder block. Subsequently, place multiple second semi-finished products 2 horizontally, that is, multiple second semi-finished products are placed on the same horizontal plane, and the end faces of the second semi-finished products 2 are in a coplanar state. Then complete the transverse opening of the suction holes 014. The axis of the suction holes 014 is consistent with the radial direction of the cylinder block.

[0079] S5: As Figure 9 shown, clamp multiple third semi-finished products 3 with suction holes 014 and vane slots 015 after processing with a fixture and place them on a milling machine to continue rough milling and finish milling of the vane slots 015; change the fixture of the third semi-finished product 3 after finish milling to a grinding machine for finish grinding of the vane slots 015, and form the fourth semi-finished product 4 after finish grinding.

[0080] In the above steps, since there are vanes slidingly arranged in the vane slots 015, in order to ensure the accuracy of the vane movement, it is necessary to perform rough milling, finish milling, and finish grinding on the vane slots 015 to ensure the accurate dimensions of the vane slots 015.

[0081] S6: As shown in Figure 10 , place the fourth semi-finished product 4 on a double-end surface grinding machine or a surface grinding machine, and finely grind the two end surfaces 018 of the fourth semi-finished product 4 to form a fifth semi-finished product 5, and the thickness of the fifth semi-finished product 5 is H5; wherein, H1 > H2 > H5 = H.

[0082] In the above steps, since the semi-finished product is clamped in S4 and S5, scratches or pinch marks are bound to occur on the two end surfaces 018 of the semi-finished product. In order to further ensure the parallelism of the two end surfaces 018, the two end surfaces 018 of the fourth semi-finished product 4 are processed to form the fifth semi-finished product 5.

[0083] S7: As shown in Figure 11 , place the fifth semi-finished product 5 on a grinding machine, and grind the outer arc surface 016 and the inner arc surface 017 of the fifth semi-finished product 5, and grind the dimensions of the outer arc surface 016 and the inner arc surface 017 of the fifth semi-finished product 5 to be the same as those of the finished inlay block 01;

[0084] In the above steps, the outer arc surface 016 and the inner arc surface 017 of the fifth semi-finished product 5 are ground to form the finished inlay block 01, ensuring that the outer arc surface 016 of the finished inlay block 01 is coplanar with the outer side surface of the cylinder block, and the inner arc surface 017 of the finished inlay block 01 is coplanar with the inner side surface of the cylinder block, ensuring that the finished inlay block 01 does not protrude from the inner and outer walls of the cylinder block. Embodiment 2

[0085] Refer to Figure 12 and 13 , which are the structural schematic diagrams of the finished inlay block in this embodiment. In the figure, the thickness of the finished inlay block 01 is H, the two side planes of the finished inlay block 01 are plane 011, there is a certain included angle between the two planes 011, transverse texture 012 and longitudinal texture 013 are arranged at the plane 011, and the transverse texture 012 and the longitudinal texture 013 are used to increase the bonding force with the light material. Suction holes 014, slide vane grooves 015 and spring holes 020 are arranged in the finished inlay block 01 along the radial direction of the cylinder block. The axes of the spring hole 020 and the slide vane groove 015 coincide. A slide vane is slidably arranged in the slide vane groove 015. One end of the slide vane contacts with the spring (not shown in the figure) in the spring hole 020 and is extruded by the spring, and the other end is in sliding sealing contact with the piston (not shown in the figure) in the cylinder block; the radius of the outer arc surface 016 of the finished inlay block 01 is R, and the radius of the inner arc surface 017 is r; Figure 13 The left and right sides in

[0086] are end surfaces 018;

[0087] S1: Select a profile 6 suitable for cold drawing. The profile 6 is a cylinder or a square structure and can be made of steel.

[0088] S2: As shown in Figure 14 、 15 , after cold drawing the profile 6 in S1 through a cold drawing die, perform segmented cutting to form a first semi-finished product 1. The outer contour of the first semi-finished product 1 is roughly the same as that of the inlay block finished product 01. Transverse textures 012 are formed on both flat surfaces 011 of the first semi-finished product 1 along the cold drawing direction. The thickness of the first semi-finished product 1 is H1, the radius of the outer arc surface 016 of the first semi-finished product 1 is R1, and the radius of the inner arc surface 017 is r1. Among them, H1 > H, R1 > R, and r1 < r.

[0089] S3: As shown in Figure 16 、 17 , if the parallelism of the two end faces 018 of the first semi-finished product 1 after cutting does not meet the requirements, for example, is greater than 4 microns, first place the first semi-finished product 1 on a milling machine for milling the end face 018 and then place it on a grinding machine for grinding the end face 018 to form a second semi-finished product 2. If the parallelism of the two end faces 018 of the first semi-finished product 1 after cutting is greater than 2 microns and less than 4 microns, directly place the first semi-finished product 1 on a grinding machine for grinding the end face to form a second semi-finished product 2. The thickness of the formed second semi-finished product 2 is H2. Among them, H1 > H2 > H.

[0090] Through the above steps, the parallelism of the two end faces 018 of the first semi-finished product 1 can be ensured, and with the end face 018 as the reference, it is convenient for subsequent processing of the air suction holes 014, the slide vane grooves 015, and the spring holes 020.

[0091] As shown in Figure 17 , in S3, after forming the second semi-finished product 2, with the end face 018 of the second semi-finished product 2 as the reference, open the longitudinal textures 013 on both flat surfaces 011 of the second semi-finished product 2.

[0092] S4: As shown in Figure 18 , first horizontally clamp the second semi-finished product 2 and open the air suction holes 014 horizontally. As shown in Figure 19 , after completing the opening of the air suction holes 014, re-clamp the second semi-finished product 2 horizontally and open the spring holes 020 horizontally.

[0093] As shown in Figure 20 , then stack and clamp multiple second semi-finished products 2 in the thickness direction and open them longitudinally to form the slide vane grooves 015.

[0094] In the above steps, first, by horizontally placing multiple second semi-finished products 2, that is, placing multiple second semi-finished products 2 on the same horizontal plane, the horizontal opening of the suction hole 014 is completed, and the axis of the suction hole 014 is consistent with the radial direction of the cylinder block; subsequently, the multiple second semi-finished products 2 are horizontally adjusted and re-clamped to complete the horizontal opening of the spring hole 020, and the axis of the spring hole 020 is consistent with the radial direction of the cylinder block;

[0095] Subsequently, by stacking multiple second semi-finished products 2, the longitudinal opening of the sliding vane groove 015 is then completed, and the axis of the sliding vane groove 015 is consistent with the radial direction of the cylinder block, thereby forming the third semi-finished product 3.

[0096] S5: As Figure 21 shown, clamp multiple third semi-finished products 3 with suction holes 014, sliding vane grooves 015, and spring holes 020 after processing using a fixture and place them on a milling machine. After completion, rough milling and finish milling of the sliding vane groove 015 are sequentially carried out to form the fourth semi-finished product 4.

[0097] In the above steps, since there is a sliding vane slidingly arranged in the sliding vane groove 015, in order to ensure the accuracy of the movement of the sliding vane, rough milling and finish milling of the sliding vane groove 015 are required to ensure the accurate dimensions of the sliding vane groove 015.

[0098] S6: As Figure 22 shown, place the fourth semi-finished product 4 on a double-end surface grinder or a surface grinder to finish grind the two end surfaces of the fourth semi-finished product 4 to form the fifth semi-finished product 5, and the thickness of the fifth semi-finished product 5 is H5; among them, H1 > H2 > H5 = H.

[0099] In the above steps, since the semi-finished products are clamped in S4 and S5, scratches or clamping injuries are bound to occur on the two end surfaces 018 of the semi-finished products. In order to further ensure the parallelism of the two end surfaces 018, the two end surfaces 018 of the fourth semi-finished product 4 are processed to form the fifth semi-finished product 5.

[0100] S7: As Figure 23 shown, place the fifth semi-finished product 5 on a grinder to grind the outer arc surface 016 and the inner arc surface 017 of the fifth semi-finished product 5, and grind the dimensions of the outer arc surface 016 and the inner arc surface 017 of the fifth semi-finished product 5 to be the same as those of the inlay block finished product 01;

[0101] In the above steps, the outer arc surface 016 and the inner arc surface 017 of the fifth semi-finished product 5 are ground to form the inlay block finished product 01, ensuring that the outer arc surface 016 of the inlay block finished product 01 is coplanar with the outer side surface of the cylinder block, and the inner arc surface 017 of the inlay block finished product 01 is coplanar with the inner side surface of the cylinder block, ensuring that the inlay block finished product 01 does not protrude from the inner and outer walls of the cylinder block. Embodiment 3

[0102] See Figure 24 、 Figure 25 which is a schematic structural view of the finished inlay block in this embodiment. The finished inlay block 01 in this Embodiment 3 is substantially the same as the finished inlay block 01 in Embodiment 2, except that the two side planes of the finished inlay block 01 are planes 011, and the two planes 011 are arranged in parallel, and an avoidance portion 021 is provided at the corner of the finished inlay block 01.

[0103] In order to form the finished inlay block shown in Embodiment 3, the following steps are adopted in this solution:

[0104] S1: Select a profile 6 suitable for cold drawing. The profile 6 is a cylinder or a square structure, and the profile 6 can be made of steel;

[0105] S2: As shown in Figure 26 , the profile 6 in S1 is cold drawn through a cold drawing die and then segmented and cut to form a first semi-finished product 1; as shown in Figure 27 , the outer contour of the first semi-finished product 1 is substantially the same as the outer contour of the finished inlay block 01. The two side planes 011 of the first semi-finished product 1 are arranged in parallel. Transverse textures 012 are formed on the two side planes of the first semi-finished product 1 along the cold drawing direction. The thickness of the first semi-finished product 1 is H1, the radius of the outer arc surface 016 of the first semi-finished product 1 is R1, and the radius of the inner arc surface 017 is r1; wherein, H1 > H, R1 > R, r1 < r.

[0106] S3: As shown in Figure 28 、 29 , if the parallelism of the two end faces 018 of the first semi-finished product 1 after cutting does not meet the requirements, for example, it is greater than 4 microns, then the first semi-finished product 1 is first placed on a milling machine for end face milling and then placed on a grinding machine for end face grinding to form a second semi-finished product 2; if the parallelism of the two end faces 018 of the first semi-finished product 1 after cutting is greater than 2 microns and less than 4 microns, then the first semi-finished product 1 is directly placed on a grinding machine for grinding the end face 018 to form a second semi-finished product 2; the thickness of the formed second semi-finished product 2 is H2; wherein, H1 > H2 > H.

[0107] In the above steps, the parallelism of the two end faces 018 of the first semi-finished product 1 can be ensured, so that with the end face 018 as the reference, it is convenient for subsequent processing of the air suction holes 014, the slide vane grooves 015, and the spring holes 020.

[0108] As shown in Figure 29 , in S3, after the second semi-finished product 2 is formed, the longitudinal textures 013 on the two side planes 011 of the second semi-finished product 2 are opened with the end face 018 of the second semi-finished product 2 as the reference.

[0109] S4: As shown in Figure 30 , first, the second semi-finished product 2 is horizontally clamped and the air suction holes 014 are transversely opened; asFigure 31 As shown, after the suction holes 014 are opened, the second semi-finished products 2 are horizontally clamped again, and the spring holes 020 are transversely opened;

[0110] As Figure 32 shown, then multiple second semi-finished products 2 are stacked and clamped in the thickness direction, and the sliding vane grooves 015 are longitudinally opened.

[0111] Through the above steps, first, by horizontally placing multiple second semi-finished products 2, that is, multiple second semi-finished products 2 are placed on the same horizontal plane, the transverse opening of the suction holes 014 is completed, and the axis of the suction holes 014 is consistent with the radial direction of the cylinder block; then multiple second semi-finished products 2 are horizontally adjusted and re-clamped to complete the transverse opening of the spring holes 020, and the axis of the spring holes 020 is consistent with the radial direction of the cylinder block.

[0112] Then, by stacking multiple second semi-finished products 2, the longitudinal opening of the sliding vane grooves 015 is completed, and the axis of the sliding vane grooves 015 is consistent with the radial direction of the cylinder block to form the third semi-finished products 3.

[0113] S5: As Figure 33 shown, multiple third semi-finished products 3 with suction holes 014, sliding vane grooves 015 and spring holes 020 after processing are clamped by a fixture and placed on a milling machine, and after completion, the sliding vane grooves 015 are rough-milled; the rough-milled third semi-finished products 3 are replaced by a fixture to a grinding machine, and the sliding vane grooves 015 are precision-ground to form the fourth semi-finished products 4 after precision grinding.

[0114] In the above steps, since there are sliding vanes slidingly arranged in the sliding vane grooves 015, in order to ensure the accuracy of the vane movement, it is necessary to rough-mill and precision-grind the sliding vane grooves 015 to ensure the accurate dimensions of the sliding vane grooves 015.

[0115] S6: As Figure 34 shown, the fourth semi-finished products 4 are placed on a double-end surface grinding machine or a surface grinding machine, and the two end surfaces 018 of the fourth semi-finished products are precision-ground to form the fifth semi-finished products 5, and the thickness of the fifth semi-finished products 5 is H5; among them, H1 > H2 > H5 = H.

[0116] In the above steps, since the semi-finished products are clamped in S4 and S5, the two end surfaces 018 of the semi-finished products will inevitably be scratched or pinched. In order to further ensure the parallelism of the two end surfaces, the two end surfaces of the fourth semi-finished products 4 are processed to form the fifth semi-finished products 5.

[0117] S7: As Figure 35 shown, the fifth semi-finished products 5 are placed on a grinding machine, and the outer arc surface 016 and the inner arc surface 017 of the fifth semi-finished products 5 are ground, and the dimensions of the outer arc surface 016 and the inner arc surface 017 of the fifth semi-finished products 5 are ground to be consistent with those of the inlay block finished product 01.

[0118] In the above steps, the outer arc surface 016 and the inner arc surface 017 of the fifth semi-finished product 5 are ground to form the mosaic block finished product 01, ensuring that the outer arc surface 016 of the mosaic block finished product 01 is coplanar with the outer side surface of the cylinder body, and the inner arc surface 017 of the mosaic block finished product 01 is coplanar with the inner side surface of the cylinder body, ensuring that the mosaic block finished product 01 does not protrude from the inner and outer walls of the cylinder body. Example 4

[0119] See also Figure 36 , Figure 37 : is a schematic diagram of the structure of the finished mosaic block in this embodiment. The finished mosaic block in this embodiment is substantially the same as the finished mosaic block 01 in Example 3, except that a connecting hole 022 is provided at a corner of the finished mosaic block 01.

[0120] In order to form the finished mosaic block shown in Example 4, this solution adopts the following steps:

[0121] S1: Select a profile 6 suitable for cold drawing, the profile 6 is a cylindrical or square structure, and the profile 6 can be made of steel;

[0122] S2: Figure 38 As shown, the profile 6 in S1 is cold-drawn by a cold-drawing die and then cut into sections to form a first semi-finished product 1; the outer contour of the first semi-finished product 1 is substantially the same as the outer contour of the mosaic block finished product 01, as shown in FIG. Figure 40 As shown, the first semi-finished product 1 has transverse textures 012 formed along the cold drawing direction on the two side planes 011, and the thickness of the first semi-finished product 1 is H1. Figure 39 As shown, the radius of the outer arc surface 016 of the first semi-finished product 1 is R1, and the radius of the inner arc surface 017 is r1; wherein H1>H, R1>R, r1 <r。

[0123] S3: Figure 40 , 41 As shown, if the parallelism of the two end faces of the first semi-finished product 1 after cutting does not meet the requirements, for example, it is greater than 4 microns, the first semi-finished product 1 is first placed on a milling machine for milling of the end face 018 and then placed on a grinding machine for grinding the end face 018 to form a second semi-finished product 2; if the parallelism of the two end faces 018 of the first semi-finished product 1 after cutting is greater than 2 microns and less than 4 microns, the first semi-finished product 1 is directly placed on a grinding machine for grinding the end face 018 to form a second semi-finished product 2; the thickness of the second semi-finished product 2 is H2; wherein, H1>H2>H.

[0124] Through the above steps, the parallelism of the two end faces 018 of the first semi-finished product 1 can be ensured, so that the subsequent processing of the suction hole 014, the slide groove 015, and the spring hole 020 is facilitated by taking the end face 018 as a reference.

[0125] likeFigure 41 As shown, in S3, after the second semi-finished product 2 is formed, taking the end face 018 of the second semi-finished product 2 as a reference, the longitudinal textures 013 of the two side planes 011 of the second semi-finished product 2 are opened.

[0126] S4: As Figure 42 shown, first, the second semi-finished product 2 is horizontally clamped, and a transverse air suction hole 014 is opened; after the opening of the air suction hole 014 is completed, as Figure 43 shown, the second semi-finished product 2 is horizontally clamped again, and a transverse spring hole 020 is opened;

[0127] As Figure 44 shown, subsequently, multiple second semi-finished products 2 are stacked and clamped in the thickness direction, and longitudinal openings are made to form a slide piece groove 015 and a connecting hole 022.

[0128] In the above steps, first, by horizontally placing multiple second semi-finished products 2, that is, multiple second semi-finished products are placed on the same horizontal plane, the transverse opening of the air suction hole 014 is completed, and the axis of the air suction hole 014 is consistent with the radial direction of the cylinder block; subsequently, multiple second semi-finished products 2 are horizontally adjusted and re-clamped to complete the transverse opening of the spring hole 020, and the axis of the spring hole 020 is consistent with the radial direction of the cylinder block;

[0129] Subsequently, by stacking multiple second semi-finished products 2, the longitudinal openings of the slide piece groove 015 and the connecting hole 022 are completed, and the axis of the slide piece groove 015 is consistent with the radial direction of the cylinder block, thereby forming the third semi-finished product 3.

[0130] S5: As Figure 45 shown, multiple third semi-finished products 3 with air suction holes 014, slide piece grooves 015, spring holes 020, and connecting holes 022 after processing are clamped with jigs and placed on a milling machine, and then rough milling and finish milling of the slide piece groove 015 are carried out in sequence; the finish-milled third semi-finished product 3 is replaced with a jig and transferred to a grinding machine for finish grinding of the slide piece groove 015, and the fourth semi-finished product 4 is formed after the finish grinding.

[0131] In the above steps, since there is a slide piece slidably arranged in the slide piece groove 015, in order to ensure the accuracy of the movement of the slide piece, rough milling, finish milling, and finish grinding of the slide piece groove 015 are required to ensure the accurate dimensions of the slide piece groove 015.

[0132] S6: As Figure 46 shown, the fourth semi-finished product 4 is placed on a double-end face grinding machine or a surface grinding machine, and the two end faces of the fourth semi-finished product 4 are finish ground to form the fifth semi-finished product 5, and the thickness of the fifth semi-finished product 5 is H5; among them, H1 > H2 > H5 = H.

[0133] In the above steps, since the semi-finished product is clamped in S4 and S5, scratches or clamping marks are bound to occur on the two end faces 018 of the semi-finished product. In order to further ensure the parallelism of the two end faces 018, the two end faces of the fourth semi-finished product 4 are processed to form the fifth semi-finished product 5.

[0134] S7: As Figure 47 shown, place the fifth semi-finished product 5 on a grinding machine and grind the outer arc surface 016 and the inner arc surface 017 of the fifth semi-finished product 5 until the dimensions of the outer arc surface 016 and the inner arc surface 017 of the fifth semi-finished product 5 are ground to be the same as those of the finished inlay block 01.

[0135] In the above steps, the outer arc surface 016 and the inner arc surface 017 of the fifth semi-finished product 5 are ground to form the finished inlay block 01, ensuring that the outer arc surface 016 of the finished inlay block 01 is coplanar with the outer side surface of the cylinder block, and the inner arc surface 017 of the finished inlay block 01 is coplanar with the inner side surface of the cylinder block, ensuring that the finished inlay block 01 does not protrude from the inner and outer walls of the cylinder block.

[0136] Inspired by the ideal embodiments of the present invention described above, through the above description, relevant staff can make various changes and modifications completely within the scope not deviating from the technical idea of this invention. The embodiments can be combined with each other to a certain extent. For example, the shape of the inlay block in Embodiment 3 and Embodiment 4 can also be applied to Embodiment 1, that is: the two side planes of the finished inlay block 01 are plane 011, the two planes 011 are arranged in parallel, and an avoidance portion 021 is provided at the corner of the finished inlay block 01 or a connection hole 022 is provided at the corner of the finished inlay block 01. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A processing technology for the cylinder inlay block in the pump body of a rotary compressor, characterized in that It includes the following steps: S1: Select profiles suitable for cold drawing; S2: After cold drawing the profiles through a cold drawing die, perform segmented cutting to form the first semi-finished product; S3: Grind both end faces of the first semi-finished product once to form the second semi-finished product, where the thickness of the first semi-finished product is greater than that of the second semi-finished product; S4: After clamping multiple second semi-finished products, perform machining to open suction holes and sliding vane grooves to form the third semi-finished product; S5: Perform secondary grinding or / and milling on the sliding vane grooves to form the fourth semi-finished product; S6: Perform secondary grinding on both end faces of the fourth semi-finished product to form the fifth semi-finished product, where the thickness of the second semi-finished product is greater than that of the fifth semi-finished product; S7: Machine the inner arc surface and outer arc surface of the fifth semi-finished product to form the finished inlay block, where the thickness of the fifth semi-finished product is equal to that of the finished inlay block; S4 includes: S41 for machining the suction holes and S42 for machining the sliding vane grooves, and the machining order of S41 and S42 can be exchanged; Among them, S41: Clamp multiple second semi-finished products with the same end face in a coplanar state, and sequentially open the suction holes horizontally for multiple second semi-finished products, so as to form the suction holes, and the axis of the suction holes is consistent with the radial direction of the cylinder block; S42: After stacking multiple second semi-finished products in the thickness direction and clamping them, open the sliding vane grooves longitudinally along the second semi-finished products, and the axis of the sliding vane grooves is consistent with the radial direction of the cylinder block.

2. The processing technology of an inlay block in the middle cylinder of a rotary compressor pump body according to claim 1, characterized in that, The profile in S1 is steel.

3. The processing technology of the inlay block of the middle cylinder of a rotary compressor pump body according to claim 1, characterized in that, The thicknesses of the third semi-finished product and the fourth semi-finished product are the same as that of the second semi-finished product.

4. The processing technology of the cylinder insert block in the rotor compressor pump body according to claim 1, characterized in that, In S3, place the first semi-finished product on a milling machine, mill the end face of the first semi-finished product, and then place the milled first semi-finished product on a double-end surface grinding machine or a surface grinding machine to grind the end face of the first semi-finished product to form the second semi-finished product; or Place the first semi-finished product on a double-end surface grinding machine or a surface grinding machine to grind the end face of the first semi-finished product to form the second semi-finished product.

5. The processing technology of an inlay block in the middle cylinder of a rotary compressor pump body according to claim 1, characterized in that, S41 also includes: After opening the suction holes, clamp multiple second semi-finished products with the same end face in a coplanar state again, and sequentially open the second semi-finished products horizontally to form spring holes, and the axis of the spring holes is consistent with the radial direction of the cylinder block.

6. The processing technology of the cylinder inlay block in the rotor type compressor pump body according to claim 1 or 5, characterized in that, In S42, when multiple second semi-finished products are stacked and clamped in the thickness direction, open through holes longitudinally along the second semi-finished products.

7. The processing technology of the inlaid block of the middle cylinder of a rotary compressor pump body according to claim 1, characterized in that, In S5, the secondary machining is to first rough mill the sliding vane grooves, and then perform finish milling or / and finish grinding on the sliding vane grooves to form the fourth semi-finished product.

8. The processing technology of the inlaid block of the middle cylinder of a rotary compressor pump body according to claim 1, characterized in that, In S6, the secondary machining is to place the fourth semi-finished product on a double-end surface grinding machine or a surface grinding machine and perform finish grinding on both end faces of the fourth semi-finished product, and the thickness of the ground fifth semi-finished product is consistent with that of the finished inlay block.

9. The processing technology of the inlay block in the middle cylinder of the rotor compressor pump body according to claim 1 is characterized in that, In S7, place the fifth semi-finished product on a grinding machine and grind the inner arc surface and outer arc surface of the fifth semi-finished product; after grinding, the inner arc surface and outer arc surface are the same size as the inner arc surface and outer arc surface of the finished inlay block.

10. The processing technology of the inlaid block of the middle cylinder of a rotary compressor pump body according to claim 1, characterized in that, In S3, after forming the second semi-finished product, it also includes opening longitudinal textures on both side planes of the second semi-finished product.

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